Skip to content / Đến nội dung
ThichHocToan.com

MathNet 2017-part-07 — 172 problems (EN–VI) Question 30

Math Olympiad Vault · MathNet 2017-part-07 — 172 problems (EN–VI)

Question 30

Find the number of ordered triples of positive integers $(a, b, c)$ such that
$$
6 a + 10 b + 15 c = 3000
$$